6 Electrical Connection User Manual
34
6.3 Grid Connection
Residual Current Device
With an integrated universal current-sensitive residual current monitoring unit
inside, the inverter will disconnect immediately from the mains power as soon as a
fault current with a value exceeding the limit has been detected.
However if an external residual current device (RCD) is mandatory, the switch must
be triggered at a failure current of 300 mA or higher.
Cable Requirements
Cross-section: 4 mm², cable diameter: 10 mm to 14 mm
All the AC cables should be equipped with correctly colored cables for
distinguishing. Please refer to related standards about the wiring color.
6.3.2 Assembling the AC Connector
Take out the AC connector parts from the packaging.
1. Lead the AC cable through the
cable gland and the housing.
2. Remove the cable jacket by
40 mm, and strip the wire
insulation by 8 mm
–15 mm.
3. Fully insert the conductors to
the corresponding terminal
and tighten the screws with the
torque 1.2 Nm. Pull cables
outward to check whether they
are firmly installed.
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